The word "heir" refers to a person who is legally entitled to inherit the property, title, or rights of another, typically upon that person’s death. This can include money, real estate, or other possessions. Heirs can be family members or others who have been designated to receive these assets. In a broader sense, an heir may also refer to someone who inherits a particular position or role, such as an heir to a throne or legacy.
The word "heir" comes from Middle English "eir," which in turn derives from the Old French "eir" or "heir," based on the Latin "hereditarius," meaning "inherited" or "inheritable," from "heres" (genitive "heredis"), meaning "heir."